Incorrect balance

At the start of this current series of system errors last Friday, I paid R1019.00 per month on the 28th of each month and all payments were fully up-to-date. I was incorrectly cut-off. I went through the online process to sort out the problem, which stated that there was an outstanding balance of R1528.00. I started by checking my debit order which indicated I was up to date. I did not have an outstanding balance. As I was unable to get through to any customer care on Friday late afternoon, I used the self-service. I could only clear the E16-4 error by settling the outstanding, albeit incorrect, the balance of R1528, which I did. I then sought help via LiveChat. They confirmed notification of a system error. I had been cut off incorrectly. I had been billed incorrectly. In fact, my account was now reflecting another client's account; one which had an outstanding balance and a payment arrangement - neither of which app**** to me. However, on reconnection which cost me the incorrect balance stated of R1528.00, as well as an unnecessary R50 for reconnection, my account balance remains incorrect. As it stands, I should have a credit of R1528 and be refunded the R50 reconnection fee. I have repeatedly Tweeted, DM'd, despite several LiveChats and complaints, still got nowhere.